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← ScienceWhich outcome occurs when an unshielded high-voltage capacitor's resonant frequency aligns with ambient radio frequencies?
A)Electromagnetic interference increases significantly✓
B)Dielectric strength automatically improves
C)Capacitance value inherently stabilizes
D)Equivalent series resistance decreases notably
💡 Explanation
Electromagnetic interference increases because voltage variations then drive strong parasitic oscillations due to inductive-capacitive coupling. Essentially, *capacitive coupling* stimulates radiation gain; therefore, increased radiated emissions occur, rather than a decrease in parasitic losses or automatic dielectric improvements.
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